A)get on with:(1) 继续(做某事) (2)与...和眭相处
B)catch up with:(1)追上,赶上,与...并驾齐驱 (2)抓住; 找到证据; 惩处
(3)带来不良的后果
(C)talk with:(1)与...交谈; 与...交换意见 (2)试图说服 (3)[口]责骂(某人)
(D)agree with (1)同意...的意见 (2)与...一致 (3)对...适合
-I think English is more useful than Chinese.
我认为英语比汉语更有用.
-I don't ___________ you.They are both useful.
我不_____你.它们都有用.
从句意上来理解,只有（D）中“同意”的含义能够衔接,因此答案是：
（D)